This dubbing brush is hands down the tool I reach for whenever I am working with long fibered materials like craft fur or EP Fibers. One try and this tool will replace your combs and brushes you are currently using to straighten out or align any type of material from synthetic to natural.  The brush comfortably slides right on to your finger, it is great for any size fly from a nymph to those giant Pike.  It has a flexible band that conforms to your finger and the brush has stainless steel micro wire and has 192 teeth that work like a dream to remove under fur, and straighten or align materials.